REI Co-op COOLMAX EcoMade Ultralight Hiking Crew Socks

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Cushioned only at critical points, the REI Co-op COOLMAX® EcoMade Ultralight Hiking crew socks are a comfort that minimalist hikers can love—and they're made using yarn from recycled water bottles.

  • Features

    • Breathable COOLMAX® polyester is blended with stretch nylon for durability and spandex for a great fit
    • Ultralight weight, ideal for close-fitting footwear
    • Seamless toe closure; padded heels and toes
    • Made to reflect our love for the planet through the use of recycled polyester, which keeps waste out of landfills
    • Made in USA with imported and domestic yarns

    Made in USA.

    View all REI Co-op Men's Hiking Socks
  • Technical Specs

    Best Use



    51% COOLMAX EcoMade recycled polyester/46% nylon/3% Lycra spandex

    Sock Height


    Sock Cushioning

    Ultralight Cushioning

    Quick Drying


    Moisture Wicking





    Contains recycled materials

  • Size Chart

    S M L XL S/M L/XL
    U.S. Men's 5.5-8.5 9-12 12.5-14 5.5-8.5 9-14
    U.S. Women's 4-6.5 7-9.5 10-12.5 4-9.5 10-12.5

    Sizing Notes

    For socks, please use shoe size.

  • Reviews
    59 reviews with an average rating of 4.5 out of 5 stars

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